GB242664A - Improvements in or relating to electro-magnetic cut-outs - Google Patents

Improvements in or relating to electro-magnetic cut-outs

Info

Publication number
GB242664A
GB242664A GB28072/25A GB2807225A GB242664A GB 242664 A GB242664 A GB 242664A GB 28072/25 A GB28072/25 A GB 28072/25A GB 2807225 A GB2807225 A GB 2807225A GB 242664 A GB242664 A GB 242664A
Authority
GB
United Kingdom
Prior art keywords
contacts
circuit
springs
core
button
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB28072/25A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stotz Abteilung Der Brown GmbH
Original Assignee
Stotz Abteilung Der Brown GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stotz Abteilung Der Brown GmbH filed Critical Stotz Abteilung Der Brown GmbH
Publication of GB242664A publication Critical patent/GB242664A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/32Insulating body insertable between contacts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/48Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having both electrothermal and electromagnetic automatic release
    • H01H73/56Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having both electrothermal and electromagnetic automatic release reset by push-button, pull-knob or slide

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)

Abstract

242,664. Stotz Ges. Abteilung der Brown, Boveri, et Cie, Akt.-Ges. Nov. 8, 1924, [Convention date]. Automatic circuit-breakers; springs, arrangement and disposition of; arc-rupturing devices.- Relates to automatic cut-outs of the kind provided with current-carrying spring contacts between which is inserted an insulating barrier. As shown in Figs. 1 and 2, current normally passes through the manually-engaging spring contacts 7 and through a solenoid 3. The solenoic has a core consisting of magnetic plates 4 between which is secured an insulating barrier 5 adapted to be moved between the contacts 7 or attraction of the core by excessive current in the solenoid 3. To ensure quick breaking of the circuit, the core is connected by links 18 to one end of a lever 10, which is pivoted at 12 and has springs 14 connected between its other end 17 and a fixed point 15. The arrangement is such that the initial attraction of the core 4 moves the springs over the dead centre into a position in which they can quickly complete the movement of the member 5. To deal with small overloads of long duration a thermal release is provided consisting of a bimetallic strip 8 fixed at one end and bearing with its free end on the lever 10, a heating coil 9 included in the cut-out circuit being arranged near to the strip. To reset the cut-out a spring-controlled push button is depressed, a notched projection 26 of the button engaging the upper end of the barrier 5, but the circuit is not completed until the button is released and returned by springs 25, so drawing the insulating projection 26 from between the contacts 7. To indicate the operation of the cutout a coloured pin 28 is arranged to project through a hole in the push-button when the barrier 5 is raised. A magnetic blow-out action is produced by placing the coil 3 beneath the contacts 7. In a modified form, Fig. 6, in which the circuit is broken simultaneously between two series-connected pairs of contacts the arcs between them are blown out as shown in opposite directions.
GB28072/25A 1924-11-08 1925-11-07 Improvements in or relating to electro-magnetic cut-outs Expired GB242664A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE242664X 1924-11-08

Publications (1)

Publication Number Publication Date
GB242664A true GB242664A (en) 1926-07-01

Family

ID=5917103

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28072/25A Expired GB242664A (en) 1924-11-08 1925-11-07 Improvements in or relating to electro-magnetic cut-outs

Country Status (4)

Country Link
US (1) US1629640A (en)
FR (1) FR605790A (en)
GB (1) GB242664A (en)
NL (1) NL16777C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201290A (en) * 1987-02-17 1988-08-24 Fdb Electrical Ltd Earth leakage circuit breaker
GB2233825A (en) * 1989-07-11 1991-01-16 Uchiya Thermostat Relay having a water sensor

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477067A (en) * 1941-06-06 1949-07-26 Line Material Co Automatic reclosing circuit breaker
US2463216A (en) * 1945-05-28 1949-03-01 Milwaukee Gas Specialty Co Thermocouple safety pilot switch
US2854544A (en) * 1956-08-06 1958-09-30 John P Wuerthner Relay
US3081393A (en) * 1958-07-15 1963-03-12 Robert J Wohl Electric vaporizers
US3168627A (en) * 1962-03-07 1965-02-02 Western Electric Co Relay with positively driven contacts
US3277412A (en) * 1963-01-19 1966-10-04 Acena Alfonso Romera De La Electromagnetic switch having intermittent operation
US3918015A (en) * 1974-08-12 1975-11-04 Raymond Lee Organization Inc Controlled circuit breaker unit
US4458225A (en) * 1982-11-18 1984-07-03 Eaton Corporation Circuit breaker with independent magnetic and thermal responsive contact separation means
DE3402372A1 (en) * 1984-01-25 1985-08-01 Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim ELECTRICAL SWITCHING ELEMENT

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2201290A (en) * 1987-02-17 1988-08-24 Fdb Electrical Ltd Earth leakage circuit breaker
GB2233825A (en) * 1989-07-11 1991-01-16 Uchiya Thermostat Relay having a water sensor
US5124679A (en) * 1989-07-11 1992-06-23 Uchiya Thermostat Co. Automatic power breaker and relay and water sensor used in the automatic power breaker
GB2233825B (en) * 1989-07-11 1994-04-13 Uchiya Thermostat Automatic power breaker and relay for use in the automatic power breaker

Also Published As

Publication number Publication date
FR605790A (en) 1926-06-01
NL16777C (en)
US1629640A (en) 1927-05-24

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